package com.douban.app.service;

import com.douban.app.model.Singer;
import com.douban.app.model.Song;

import java.util.List;

public interface SingerService {

    Singer addSinger(Singer singer);

    Singer get(String singerId);
    List<Singer> getAll();

    boolean modify(Singer singer);

    boolean delete(String stringId);

    List<Song> songs(String id);

    public List<Song> getSongBySingerName(String name);

    public Singer getSingerBySingerName(String name);

}
